.y-text {
  font-size: 6px;
  fill: #ccc;
  text-anchor: end;
}

.x-line {
  fill: none;
  stroke: #ccc;
  stroke-width: 1px;
}

.x-text {
  font-size: 8px;
  fill: #ccc;
  text-anchor: middle;
}
